Abstract
Abstract Determination of different carbohydrate and nitrogen fractions was made in tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively. Shoots of Orobanche were also subjected to such analyses. Infection raised the level of total reducing and total sugar in the host with a simultaneous decrease in the level of acid‐hydrolyzable and total carbohydrates in the constituent organs of infected hosts. This has been explained to be due to predominance of hydrolytic activity in the infected host. Infection also brought about a depression in the proportion of sucrose to the pool of total sugar in the host. This was also possibly due to predominance of hydrolytic processes and retardation in the synthetic processes. Higher concentration of acid‐hydrolyzable and total carbohydrates in Orobanche than in the host indicated a high demand for sugars by the parasite. The insignificant differences between the relative proportions of different nitrogen fractions to the pool of total nitrogen in healthy and infected hosts indicated that nitrogen metabolism was not deranged in any way due to infection. Orobanche always had a lower concentration of total soluble and total nitrogen than the host root.
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Claims 15
Claim · model-written summary
Orobanche infection raised total reducing and total sugar in tomato.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Infectione1
- Interactor
- Orobanche cernua
Orobanche cernuae0parasite - Outcome
- total reducing and total sugare1
- Direction
- raisede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“Infection raised the level of total reducing and total sugar in the host”
Claim · model-written summary
Orobanche infection raised total reducing and total sugar in mustard.
- Taxon
- mustarde0
- Treatment
- Infectione1
- Interactor
- O. aegyptiaca
Phelipanche aegyptiacae0parasite - Outcome
- total reducing and total sugare1
- Direction
- raisede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“Infection raised the level of total reducing and total sugar in the host”
Claim · model-written summary
Orobanche infection decreased acid-hydrolyzable and total carbohydrates in tomato organs.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- constituent organse1
- Treatment
- infectede1
- Interactor
- Orobanche cernuaOrobanche cernuae0parasite
- Outcome
- acid‐hydrolyzable and total carbohydratese1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“simultaneous decrease in the level of acid‐hydrolyzable and total carbohydrates in the constituent organs of infected hosts”
Claim · model-written summary
Orobanche infection decreased acid-hydrolyzable and total carbohydrates in mustard organs.
- Taxon
- mustarde0
- Organ / stage
- constituent organse1
- Treatment
- infectede1
- Interactor
- O. aegyptiacaPhelipanche aegyptiacae0parasite
- Outcome
- acid‐hydrolyzable and total carbohydratese1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“simultaneous decrease in the level of acid‐hydrolyzable and total carbohydrates in the constituent organs of infected hosts”
Claim · model-written summary
The authors attributed host carbohydrate depletion to predominant hydrolytic activity.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Orobanche cernuaOrobanche cernuae0parasite
- Outcome
- infected hoste1
- Qualifier
- predominance of hydrolytic activitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“This has been explained to be due to predominance of hydrolytic activity in the infected host.”
Claim · model-written summary
Infection depressed the sucrose proportion of total sugar in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Infectione1
- Interactor
- Orobanche cernuaOrobanche cernuae0parasite
- Outcome
- proportion of sucrose to the pool of total sugare1
- Direction
- depressione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“Infection also brought about a depression in the proportion of sucrose to the pool of total sugar in the host.”
Claim · model-written summary
Infection depressed the sucrose proportion of total sugar in mustard.
- Taxon
- mustarde0
- Treatment
- Infectione1
- Interactor
- O. aegyptiacaPhelipanche aegyptiacae0parasite
- Outcome
- proportion of sucrose to the pool of total sugare1
- Direction
- depressione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“Infection also brought about a depression in the proportion of sucrose to the pool of total sugar in the host.”
Claim · model-written summary
The authors suggested hydrolysis dominance and slower synthesis explain the lower host sucrose proportion.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Orobanche cernuaOrobanche cernuae0parasite
- Outcome
- hydrolytic processese1
- Qualifier
- retardation in the synthetic processese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“This was also possibly due to predominance of hydrolytic processes and retardation in the synthetic processes.”
Claim · model-written summary
Orobanche had higher acid-hydrolyzable and total carbohydrates than tomato hosts.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Orobanche cernuaOrobanche cernuae0parasite
- Outcome
- concentration of acid‐hydrolyzable and total carbohydrates in Orobanchee1
- Direction
- Highere1
- Comparator
- hoste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“Higher concentration of acid‐hydrolyzable and total carbohydrates in Orobanche than in the host”
Claim · model-written summary
Orobanche had higher acid-hydrolyzable and total carbohydrates than mustard hosts.
- Taxon
- mustarde0
- Interactor
- O. aegyptiacaPhelipanche aegyptiacae0parasite
- Outcome
- concentration of acid‐hydrolyzable and total carbohydrates in Orobanchee1
- Direction
- Highere1
- Comparator
- hoste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“Higher concentration of acid‐hydrolyzable and total carbohydrates in Orobanche than in the host”
Claim · model-written summary
The authors interpreted parasite carbohydrate enrichment as high sugar demand.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Orobanche cernuaOrobanche cernuae0parasite
- Outcome
- high demand for sugars by the parasitee1
- Qualifier
- high demand for sugarse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“indicated a high demand for sugars by the parasite”
Claim · model-written summary
Nitrogen fraction proportions did not differ significantly between healthy and infected tomato hosts.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- infected hostse1
- Interactor
- Orobanche cernuaOrobanche cernuae0parasite
- Outcome
- relative proportions of different nitrogen fractions to the pool of total nitrogene1
- Direction
- insignificant differencese1
- Comparator
- healthye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“insignificant differences between the relative proportions of different nitrogen fractions to the pool of total nitrogen in healthy and infected hosts”
Claim · model-written summary
Nitrogen fraction proportions did not differ significantly between healthy and infected mustard hosts.
- Taxon
- mustarde0
- Treatment
- infected hostse1
- Interactor
- O. aegyptiacaPhelipanche aegyptiacae0parasite
- Outcome
- relative proportions of different nitrogen fractions to the pool of total nitrogene1
- Direction
- insignificant differencese1
- Comparator
- healthye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“insignificant differences between the relative proportions of different nitrogen fractions to the pool of total nitrogen in healthy and infected hosts”
Claim · model-written summary
Orobanche had lower total soluble and total nitrogen concentrations than tomato host roots.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Orobanche cernuaOrobanche cernuae0parasite
- Outcome
- concentration of total soluble and total nitrogene1
- Direction
- lowere1
- Comparator
- host roote1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“Orobanche always had a lower concentration of total soluble and total nitrogen than the host root.”
Claim · model-written summary
Orobanche had lower total soluble and total nitrogen concentrations than mustard host roots.
- Taxon
- mustarde0
- Interactor
- O. aegyptiacaPhelipanche aegyptiacae0parasite
- Outcome
- concentration of total soluble and total nitrogene1
- Direction
- lowere1
- Comparator
- host roote1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato ( Lycopersicum esculentum Mill.) and mustard ( Brassica campestris L.) serving as hosts for Orobanche cernua and O. aegyptiaca respectively.”
e1“Orobanche always had a lower concentration of total soluble and total nitrogen than the host root.”